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TECHNICAL PAPERS

Aerodynamic Loss Characteristics of a Turbine Blade With Trailing Edge Coolant Ejection: Part 1—Effect of Cut-Back Length, Spanwise Rib Spacing, Free-Stream Reynolds Number, and Chordwise Rib Length on Discharge Coefficients

[+] Author and Article Information
Oguz Uzol, Cengiz Camci

Turbomachinery Heat Transfer Laboratory, The Pennsylvania State University, University Park, PA 16802

Boris Glezer

Heat Transfer Team Leader, Solar Turbines, Inc., San Diego, CA 92186

J. Turbomach 123(2), 238-248 (Feb 01, 2000) (11 pages) doi:10.1115/1.1348017 History: Received February 01, 2000
Copyright © 2001 by ASME
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References

Figures

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Trailing edge details and throat section
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Trailing edge cooling system and plenum chamber details
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Cut-back configurations and the trailing edge cavity
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Four different cut-back lengths
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Three different rib arrangements (Models A, B, C)
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Discharge coefficients for Model A
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Discharge coefficients for model B
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Discharge coefficients for model C
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Actual coolant mass flow rate ratio versus pressure ratio (model A, Covers 1 and 4)
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Five different rib lengths (Model C, Cover 2)
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Influence of rib length on discharge coefficients (Model C, Cover 2)
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Discharge coefficients versus coolant to free-stream mass flow rate ratio (model C, Cover 2, data for all five rib lengths)
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Actual coolant mass flow rate versus pressure ratio (Model C, Cover 2, data for all five rib lengths)
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Spanwise total pressure uniformity at the trailing edge

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